RCE in Microsoft GitHub Copilot Chat
CVE-2026-50519
Initialization of a resource with an insecure default in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to disclose information over a network.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
References
- Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-50519?
- CVE-2026-50519 is a medium-severity vulnerability in Microsoft GitHub Copilot Chat, classified under Initialization of a Resource with an Insecure Default. CVSS score: 6.5/10. Published 2026-06-19.
- How severe is CVE-2026-50519?
- Medium severity. CVSS v3 base score is 6.5 out of 10.